U.S. patent number 6,199,517 [Application Number 09/424,327] was granted by the patent office on 2001-03-13 for latent heat storage system for use in a vehicle.
This patent grant is currently assigned to Wilo GmbH. Invention is credited to Albert Genster, Gerhard Hunnekuhl, Hansjurgen Kech, Horst-Georg Schmalfuss.
United States Patent |
6,199,517 |
Genster , et al. |
March 13, 2001 |
Latent heat storage system for use in a vehicle
Abstract
The invention relates to a latent heat storage system for use on
the cooling-water circuit of a vehicle combustion engine, whereby a
motor-driven rotary pump is secured either at the edge of the
storage system housing or inside said housing.
Inventors: |
Genster; Albert (Marl,
DE), Kech; Hansjurgen (Herdecke, DE),
Schmalfuss; Horst-Georg (Meinerzhagen, DE),
Hunnekuhl; Gerhard (Witten, DE) |
Assignee: |
Wilo GmbH (Dortmund,
DE)
|
Family
ID: |
8166722 |
Appl.
No.: |
09/424,327 |
Filed: |
November 19, 1999 |
PCT
Filed: |
July 31, 1997 |
PCT No.: |
PCT/EP97/04646 |
371
Date: |
November 19, 1999 |
102(e)
Date: |
November 19, 1999 |
PCT
Pub. No.: |
WO99/06234 |
PCT
Pub. Date: |
February 11, 1999 |
Current U.S.
Class: |
123/41.14;
165/902 |
Current CPC
Class: |
F01P
11/00 (20130101); F01P 11/20 (20130101); F04D
13/16 (20130101); F01P 5/10 (20130101); F01P
7/16 (20130101); F01P 2011/205 (20130101); F01P
2070/00 (20130101); Y10S 165/902 (20130101) |
Current International
Class: |
F01P
11/00 (20060101); F01P 11/20 (20060101); F01P
11/14 (20060101); F04D 13/16 (20060101); F04D
13/00 (20060101); F01P 5/00 (20060101); F01P
5/10 (20060101); F01P 7/16 (20060101); F01P
7/14 (20060101); F01P 011/02 () |
Field of
Search: |
;123/41.14,41.44
;165/902,DIG.539 |
References Cited
[Referenced By]
U.S. Patent Documents
Primary Examiner: Kamen; Noah P.
Attorney, Agent or Firm: Dubno; Herbert Wilford; Andrew
Parent Case Text
CROSS REFERENCE TO RELATED APPLICATIONS
This is the US national phase of PCT application PCT/EP97/04646
filed Jul. 31, 1997.
Claims
What is claimed is:
1. A latent-heat storage unit for the coolant-water system of a
motor-vehicle internal-combustion engine comprising
a motor; and
a centrifugal pump driven by the motor and having a housing with a
side turned away from the motor and having a planar connecting face
provided with input and output ports and by which the pump is
mounted on the latent-heat storage unit.
2. The latent-heat storage unit according to claim 1 wherein the
latent-heat storage unit and the pump form a single module.
3. The latent-heat storage unit according to claim 1 wherein the
pump is mounted on an end of the latent-heat storage unit.
4. The latent-heat storage unit according to claim 1, further
comprising
a disk forming an intermediate device and mounted between the
connecting face and the latent-heat storage unit and having a
hydraulic device.
5. The latent-heat storage unit according to claim 1 wherein the
pump is a canned-motor pump.
6. The latent-heat storage unit according to claim 1 wherein the
pump is a tubular pump having a rotor axially traversed by
coolant.
7. The latent-heat storage unit according to claim 1 wherein the
motor of the pump has a magnetic rotor.
8. The latent-heat storage unit according to claim 1, further
comprising
an intermediate device between an end of the pump and the
latent-heat storage unit and having a housing that holds electronic
control parts.
Description
FIELD OF THE INVENTION
It is known to put in the coolant-circulation system of a
motor-vehicle internal-combustion engine a cooler, a
heater/air-conditioner, and a latent-heat storage device. The
coolant is 5 circulated by a pump and the motor, cooler, heater,
and latent-heat storage device form in the engine compartment of
the motor vehicle along with the pump for the coolant system
separate units that must be mounted one after the other in the
engine compartment.
OBJECTS OF THE INVENTION
It is an object of the invention to simplify the manufacture,
installation, and repair, in particular also the exchange of the
parts, of a coolant system and to make them less expensive while
also saving space.
SUMMARY OF THE INVENTION
This object is achieved according to the invention in that a
motor-driven centrifugal pump is mounted in or on the Latent-heat
storage unit.
Thus the latent-heat storage unit and the pump form a single module
which substantially simplifies its manufacture and installation. In
addition repairs are made easier and less space is needed in the
engine compartment.
It is particularly advantageous when the pump is mounted on an end
of the latent-heat storage unit. It is also from the point of view
of manufacture and saving of space advantageous when a side of the
pump housing turned away from the motor has a planar connecting
face with input and output ports and serves for mounting the pump
on the latent-heat storage unit or an intermediate device. A disk
forming an intermediate device can be mounted between the
connecting face and the pump and/or the latent-heat storage unit
and has a hydraulic distributor and/or a valve (in particular a
three-way valve).
A particularly advantage use of the pump is achieved when the pump
is a tubular pump whose rotor is axially traversed by coolant. The
electric motor of the pump can have a magnetic rotor so that the
pump takes up very little space and can be mounted on the adjacent
devices like a disk.
Further integration and reduction of space is achieved when an end
of the pump and/or of the latent-heat storage unit carries a
housing of the intermediate device that holds electronic control
parts.
BRIEF DESCRIPTION OF THE DRAWING
An embodiment of the invention is shown in exploded perspective
view in the drawing and is described more closely in the
following.
SPECIFIC DESCRIPTION
An in particular cylindrical latent-heat storage unit 1 is
connected in a coolant-water circuit of a motor-vehicle
internal-combustion engine directly on the end or via an
intermediate assembly to a motor pump, in particular a canned-motor
pump 2. The intermediate assembly can be an electronic DEVICE 4 or
hydraulic device 3. Here the latent-heat storage unit 1, motor pump
2, and possible intermediate assemblies 3 and 4 form a single
module that can be mounted inside another module through which the
coolant is circulated.
The motor pump 2 is either a tubular pump or a canned-motor pump
whose housing has turned away from the electric motor a planar
connecting face with input and output ports. This connecting face
is used to secure the pump to the latent-heat storage unit 1.
It is possible to connect between the motor pump 2 and the
latent-heat storage unit 1 a disk-shaped hydraulic manifold and/or
a valve 3, in particular a three-way valve, that is operated by an
electronic controller 4. The controller 4 is inside a housing that
has the electronic elements for controlling the pump 2 and/or the
heat-storage unit 1 and is mounted on the end of the motor pump 2
and/or of the latent-heat storage unit 1.
In accordance with further alternatives, the motor of the motor
pump 5 can have a magnetic rotor so that the motor pump is
particularly short axially. In addition the devices 3 and 4 can be
mounted on the end of the latent-heat storage unit 1 which is
opposite to the pump 2. The pump 2 can also be a tubular pump.
* * * * *